Which describes the important role of the ozone layer?
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It prevents the air from getting thinner.
It protects the surface from extreme weather.
It increases the oxygen level.
It absorbs harmful ultraviolet radiation.
It absorbs harmful ultraviolet radiation.
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The important role of the ozone layer is that it absorbs harmful ultraviolet (UV) radiation from the sun, which protects living organisms, including humans, from the damaging effects of UV radiation such as skin cancer, cataracts, and immune system suppression.
Question:
Which describes the importance role of the ozone layer?
It increases the oxygen level.
It increases the oxygen level.
It protects the surface from extreme weather.
It protects the surface from extreme weather.
It absorbs harmful ultraviolet radiation.
It absorbs harmful ultraviolet radiation.
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The important role of the ozone layer is that it absorbs harmful ultraviolet (UV) radiation from the sun. This protective layer in Earth's atmosphere shields us from the majority of these dangerous rays. To understand this, we need to have some knowledge about the composition of the atmosphere.
The Earth's atmosphere is made up of several layers, one of which is the ozone layer found in the stratosphere, approximately 10 to 50 kilometers above the Earth's surface. The ozone layer consists of ozone molecules (O3) which are formed when oxygen molecules (O2) are exposed to UV radiation.
UV radiation emitted by the sun consists of three types: UVA, UVB, and UVC. UVC is the most harmful, but thankfully it is entirely absorbed by the Earth's atmosphere. However, UVA and UVB rays can penetrate the atmosphere and reach the Earth's surface. This is where the ozone layer becomes crucial.
Ozone molecules in the ozone layer absorb and scatter UVB radiation, preventing it from reaching the surface in large quantities. This absorption process converts the UVB radiation into heat energy. Without the ozone layer, the amount of UVB reaching the Earth's surface would be dangerously high and result in severe consequences, such as skin cancer, cataracts, immune system suppression, and harm to marine ecosystems.
So, the answer to your question is that the important role of the ozone layer is to absorb harmful ultraviolet (UV) radiation emitted by the sun, protecting us and the environment from its detrimental effects.